2.4GHz Wireless Laser PowerPoint Page Turning Pen Multimedia Wireless Presentation Projection Pen with USB Receiver, Remote Control Distance: 30m

2.4GHz Wireless Laser PowerPoint Page Turning Pen Multimedia Wireless Presentation Projection Pen with USB Receiver, Remote Control Distance: 30m1. USB receiver, plug and play 2. The page can be turned up and down, the keys are sensitive 3. With the red light indicator, you can easily point out the main focus of the listener and let them follow the demo steps with just one button press 4. You can receive signals in 360 degrees, even if you walk around in the meeting room or classroom, you can control it completely 5. The battery needs to use the AAA battery (need to be purchased separately),